spring cloud feign 注入bean 为null，启动报错

spring cloud feign 注入bean 为null，启动报错

主要是feign版本和swagger版本冲突，本项目spring cloud 版本为 Finchley.M8

swagger冲突版本

        <!-- swagger2 -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.2.2</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.2.2</version>
        </dependency>

解决方案

        <!-- swagger2 -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.5.0</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.5.0</version>
        </dependency>

feign Service案例

@FeignClient(name  = "service-weixin",fallback = OAuthServiceFallBack.class, configuration = FeignConfig.class)
public interface OAuthService {

     @RequestMapping(value = "/oauth/getOauth2AuthorizationUrl", method = RequestMethod.GET)
     ResultBean<String> getOauth2AuthorizationUrl(@RequestParam("url")String url);

}

controller注入

@RestController
@RequestMapping("/ticket")
public class TicketController {

    @Autowired
    private TicketService ticketService;

    @Autowired
    private OAuthService oAuthService;
    ...